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5-4 REASSEMBLY PROCEDURES
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PRECAUTIONS FOR REASSEMBLY
1) Clean parts thoroughly before reassembly.
Pay most attention to cleanliness of piston, cylinder, crankshaft, connecting rod and bearings.
2) Scrape off all carbon deposits from cylinder head, piston top and piston ring grooves.
3) Check lip of oil seals. Replace oil seal if the lip is damaged. Apply oil to the lip before reassembly.
4) Replace all the gaskets with new ones.
5) Replace keys, pins, bolts, nuts, etc., if necessary.
6) Torque bolts and nuts to specification referring to the "TORQUE SPECIFICATIONS".
7) Apply oil to rotating and sliding portions.
8) Check and adjust clearances and end plays where specified in this manual.
5-4-1 CRANKSHAFT
(1) Install crankshaft on crankcase wrapping the
key-way with polyvinyl tape to avoid damage
to oil seal.
(2) Install woodruff key for flywheel on crankshaft.
5-4-2 PISTON AND PISTON RINGS
(1) Install oil ring first, then second ring and top
ring.
Spread ring only far enough to slip over pis-
ton and into correct groove. Use care not to
distort ring.
Install second ring with punched mark beside
the gap face upward. (See Fig. 5-27)
Fig. 5-24
Fig. 5-25
POLYVINYL TAPE
CRANKSHAFT
OPEN ENDS OF PISTON RING
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